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Finding the Fourth Proportional to 350.84, 526.25 and 90.84

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Solution

The fourth proportional to 350.84, 526.25 and 90.84 is: 136.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.84 : 526.25 = 90.84 : x
  2. Step 2: Convert to fraction form
    350.84/526.25 = 90.84/x
  3. Step 3: Cross multiply
    350.84x = 526.25 × 90.84
  4. Step 4: Simplify right side
    350.84x = 47,804.55
  5. Step 5: Solve for x
    x = 47,804.55/350.84
  6. Step 6: Final answer
    x = 136.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.